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--
-- https://gist.github.com/numToStr/1ab83dd2e919de9235f9f774ef8076da
--
local cmd = vim.api.nvim_command
local function autocmd(this, event, spec)
local is_table = type(spec) == 'table'
local pattern = is_table and spec[1] or '*'
local action = is_table and spec[2] or spec
if type(action) == 'function' then
action = this.set(action)
end
local e = type(event) == 'table' and table.concat(event, ',') or event
cmd('autocmd ' .. e .. ' ' .. pattern .. ' ' .. action)
end
local S = {
__au = {},
}
local X = setmetatable({}, {
__index = S,
__newindex = autocmd,
__call = autocmd,
})
function S.exec(id)
S.__au[id]()
end
function S.set(fn)
local id = string.format('%p', fn)
S.__au[id] = fn
return string.format('lua require("au").exec("%s")', id)
end
function S.group(grp, cmds)
cmd('augroup ' .. grp)
cmd('autocmd!')
if type(cmds) == 'function' then
cmds(X)
else
for _, au in ipairs(cmds) do
autocmd(S, au[1], { au[2], au[3] })
end
end
cmd('augroup END')
end
return X
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